If our skin were our gas exchange surface, it would have sufficient surface area to support our need for oxygen.

Question

Quizplus · Accepted Answer

While the skin does play a role in gas exchange, it does not have a large enough surface area to support our need for oxygen. This is why the respiratory system, with its highly specialized structures such as alveoli in the lungs, is necessary for efficient gas exchange in the body.

If Our Skin Were Our Gas Exchange Surface, It Would